you'd use any of these:
JSTL c:forEach varStatus properties
Property Getter Description
current getCurrent() The item (from the collection) for the current round of iteration.
index getIndex() The zero-based index for the current round of iteration.
count getCount() The one-based count for the current round of iteration
last isLast() Flag indicating whether the current round is the last pass through the iteration
begin getBegin() The value of the begin attribute
end getEnd() The value of the end attribute
step getStep() The value of the step attribute